139684476 has 24 divisors (see below), whose sum is σ = 326147920. Its totient is φ = 46530432.

The previous prime is 139684471. The next prime is 139684483. The reversal of 139684476 is 674486931.

139684476 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139684471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21480 + ... + 27216.

Almost surely, 2^139684476 is an apocalyptic number.

It is an amenable number.

139684476 is an abundant number, since it is smaller than the sum of its proper divisors (186463444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139684476 is a wasteful number, since it uses less digits than its factorization.

139684476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7773 (or 7771 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 139684476 is about 11818.8187226981. The cubic root of 139684476 is about 518.8590318842.

The spelling of 139684476 in words is "one hundred thirty-nine million, six hundred eighty-four thousand, four hundred seventy-six".